body ,ul ,li ,dd,dl,h3,span,i,h1{
    margin: 0;
    padding: 0;
    font-size:14px;
}
body{
    min-width: 1300px;

}
a{
    text-decoration: none;
    color: #333;

}
/* 对斜体元素重置 */
i, em {
    font-style: normal;
  }

  img{
      vertical-align: top;
  }

  ul, ol, li {
    list-style: none;
  }